Carrier route record
YXDTW→CMH
Republic Airways · Detroit to Columbus
- Flights
- 878
- Period
- July 2025 to June 2026
- Share of route
- 63%
- Carriers
- 3
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with Republic Airways.
Republic on DTW to CMH earns an A+. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 9 points better than the national rate of 77.6%. When something does go wrong the average delay runs a little over an hour. That rests on 878 flights, with a median arrival 9 minutes early.
Set against the rest of the country, Republic's DTW to CMH record is 9 points better than the US average of 77.6%. That gap is worth roughly 90 fewer late arrivals for every thousand flights.
Key figures
On time
86.6%
Arrivals under 15 minutes late, of 875 completed flights
Avg delay
81 min
Across delayed arrivals only, not all flights
Cancelled
0.34%
National rate is 1.81%
Whole route
82.3%
Every carrier on DTW to CMH, 1,404 flights
These figures cover 878 flights between July 2025 and June 2026. The median arrival is 9 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.
Carrier by carrier
Republic against every carrier on DTW to CMH
Republic flew 878 of the 1,404 flights on DTW to CMH, most of the route. Its 86.6% on time is 4 points better than the route as a whole, which runs 82.3%. Ranked by on-time rate it is first of three carriers on the route, where the range runs from Republic at 86.6% to Delta at 75.0%. One of those carriers flew fewer than 365 flights here, so treat their positions as rough.
Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Republic Airways (this page) | 878 | 86.6% | 81 min | 0.34% | A+ |
| SkyWest Airlines | 522 | 75.1% | 121 min | 1.53% | B |
| Delta Air Linesthin sample | 4 | 75.0% | 38 min | 0.00% | B+ |
Flight by flight
Republic flight numbers on DTW to CMH
Departure window
When Republic runs best on this route
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 14 points, against half a point between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.
- 5am–8am—
- 8am–11am174 flights89.6%
- 11am–2pm98 flights94.9%
- 2pm–5pm165 flights81.2%
- 5pm–8pm42 flights88.1%
- 8pm–5am399 flights85.4%
Scale runs 75% to 100%. Rows with fewer than 30 flights show a dash.
The best window here is not the first bank but the 11am–2pm slot at 94.9% on time, ahead of 2pm–5pm at 81.2%. Where the curve peaks mid-day rather than at dawn, the constraint is usually congestion at one end rather than the aircraft's own rotation. The 8pm–5am window is the busiest, with 399 flights scheduled in it.
Across the year
Republic on DTW to CMH through the year
September is the best month on the calendar at 95.3% on time. Shoulder season thins the schedule and takes the summer weather with it, and the operation gets its margin back. August was the busiest month here, with 125 flights.
Across the week, Thursday is the strongest day at 90.2% on time and Wednesday the weakest at 82.7%. 8 points is a smaller lever than departure hour, but it is free.
Delay causes
Why Republic runs late on this route
One category carries most of the weight here. Carrier accounts for 54% of the 9,488 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.
- 54%Carrier
- 32%Late-arriving aircraft
- 11%National Airspace System
- 2%Extreme weather
- 0%Security
The largest share of delay minutes, 54%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. Unlike weather, that is a management outcome, and it is the category where the gap between two carriers on the same schedule is genuinely earned. It accounts for 5,122 of the 9,488 delay minutes reported here. The split is drawn from 9,488 reported delay minutes.
Cancellations are rare at 0.34%, below the national 1.81% and low enough to earn the plus on the grade. Roughly one flight in 100 is called off; the risk here is arriving late, not not arriving.
Connections and stage length
What a delay here costs
5.1% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last a little over an hour, which a normal layover absorbs.
At 155 miles this is a short hop, and stage length matters more than it looks. A flight this short spends under two hours in the air, which leaves almost nothing to claw back a late pushback with. Delay here is decided on the ground, in the turn, which is why the 11am–2pm window matters as much as it does.
The return leg is a different operation and performs like one: it runs 89.8% on time across 879 flights, 3 points above this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 3 points of difference.
One caution: this is a thin sample. 878 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.
What to do with this
Booking Republic on DTW to CMH
Put together: treat all of this as provisional. 878 flights over twelve months is enough to clear this site's floor and not enough to be confident to better than a couple of points. The 86.6% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 875 completed flights over 12 months sit behind that.
Related
Where to go next
- DTW to CMH, every carrier
- Republic on CMH to DTW, the return leg
- SkyWest Airlines on DTW to CMH75.1%
- Republic Airways network-wide record
- Detroit Metropolitan Wayne County (DTW) delay statistics
- John Glenn Columbus International (CMH) delay statistics
- Why the first flight of the morning is statistically safest
- The best time of day to fly, according to 7.04 million flight records
Source: US DOT Bureau of Transportation Statistics, on-time performance data, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.